I feel like I'm threadjacking now....Considering the tv is 1080p would it make any difference to upgrade the dvd player to a bluray MAINLY for the dvd upgrade benefit?
What kind of TV are your using right now?
If you're watching DVD's via a DVD player on a HDTV, then the HDTV is currently handling the upconversion from the DVD player. If the HDTV is a good quality unit, it may be doing a fine job of upconverting, but this depends entirely on the unit. Replacing the DVD player with a BluRay player, even a cheap one, shouldn't make things worse. At least, if it does, you should be able to read the manual on the BluRay player and find the option to just continue to push the unconverted DVD signal to the HDTV just like the old DVD player did and continue to let the HDTV to the upconversion. But it's possible that the BluRay has a better upconversion capability and you may realize a better picture right out of the box. That would be nice.
Either way though, using the BluRay player grants you the ability to now enjoy BluRay's. And you will most definitely notice an improvement in image quality when watching BluRays! Not to mention the improvement in sound as well.